The Italy-Japan bi-lateral collaboration
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1 The Italy-Japan bi-lateral collaboration (INAF-IRA) G. Giovannini, M. Giroletti, F. D'Ammando, K. Hada, M. Honma, Y. Hagiwara, Y. Murata, H. Nagai, M. Kino, S. Koyama, K. Akiyama, A. Doi, K. Niinuma, S. Sawada-Satoh, and the Genji Team
2 Outline 1) Italian radio telescopes 2) Italy-Japan collaboration 3) First scientific results
3 Medicina Northern Cross 50 years ago, opening of radio astronomy in Italy 408 MHz 640 m N-S 564 m E-W Area: m2 Currently used as a test ground for SKA and LOFAR technologies. B2 and B3 catalogues of radio sources Involved in the ASI program for searching and monitoring space debris.
4 Medicina 32-m antenna Frequency agility (<4min) Receivers: GHz (K-band dual feed) Remote control Optical fiber link (10 Gbps) VLBI Network Mark5-C recorder, FILA10G board, DBBC transition completed Mark5-A+analog backend legacy configuration
5 Noto 32-m antenna Frequency agility will come soon Receivers: GHz Active surface up to 86 GHz Optical fiber link (10 Gbps) VLBI Network Mark5-B recorder, FILA10G board, DBBC transition completed
6 Sardinia 64-m antenna 2013 September: inauguration of the Sardinia Radio Telescope Frequency agility Receivers: 0.3/1.4, 6.7, 22 GHz (Kband multi feed) 43 GHz planned Designed for up to 13 total receivers (three focal positions), up to 100 GHz Optical fiber link planned VLBI Network DBBC backend, FILA10G, Mark5C recorder Mark5-B recorder being installed
7 Italian VLBI Beam: 20 GHz 2 22 GHz 580 km Max ang scale: 30 GHz 3 22 GHz Sensitivity: 0.4 GHz GHz 878 km 562 km Medicina-Noto-SRT
8 What achieved so far 2013: software DIFX correlator in Bologna 2013: Mc Nt fringes found in Bologna and Mitaka 2014: Sr Nt and Sr Md fringes found in Bologna
9 Italy-Japan Network Medicina Sardinia Noto A network of Japanese and Italian antennas will provide a sensitivity of 0.16 mjy/beam at 22 GHz, and a resolution of 0.4x0.2 mas, i.e. about one order of magnitude better.
10 Italy-Japan collaboration : Radio Astronomy from Space PI: Prof G. Giovannini, Prof. Y. Murata Aim: Study of the nuclear region of radio-loud AGN : Italy-Japan joint observations to understand black hole properties PI: Prof G. Giovannini, Prof. M. Honma Aim: Study of the SMBH by high resolution VLBI observations
11 Italy-Japan collaboration Since 2010: About 5 visitors from Japan to Bologna per year About 3 visitors from Italy to NAOJ per year >15 papers published on peer-reviewed journals 2 Conferences East Asia to Italy: Nearly Global VLBI Eating VLBI held in Bologna in 2012 and 2014 More than 40 participants from Japan, Korea, Italy
12 Eating VLBI 9 talks on ongoing projects 5 talks on plans for joint observations 11 talks on topics of mutual interest 7 talks from junior researchers
13 Scientific results Connection between radio and γ-ray emission in AGN Pc-scale images Multi-band light curves Emission from NLSy1 Giroletti et al Nagai et al Genji programme Orienti et al VERA+Medicina+ FGAMMA Global e-vlbi EVN+LBA+Kashima
14 Scientific results The jet structure in radio-loud AGN 3C 84 M 87 Nagai et al Hada et al Limb-brightened structure and jet collimation in nearby radio galaxies
15 Scientific results The jet structure in radio-quiet AGN and more.. Sombrero Seyfert Theoretical works Hada et al Bontempi et al Kino et al Jets in radio-quiet AGN and theoretical prediction for the next generation of telescopes like CTA, SKA...
16 Future plans End : First three-station Mc-Nt-Sr fringes Near real time Mc-Nt-(Sr)-VERA fringes at 22 GHz Mid 2015: Full track Mc-Nt-(Sr)-VERA observations at 22 GHz Second attempt at detecting Nt-VERA fringes at 43 GHz MoU for a common use of Italian and VERA antennas Future: East Asia to Italy VLBI: I-VLBI+VERA+KVN
17 Future plans Medicina Sardinia Noto KVN provides short baselines Sensitive to larger angular scales Italy+Japan provides very long baselines Angular resolution improvement of ~ an order of magnitude
18 Future plans KVN+VERA+Italy: improvement of the uv-coverage Dec= -10 Dec= +70 Dec= +10 New outstanding scientific results!!
19
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